<template>
  <view class="login-container">
    <uni-icons type="contact-filled" size="100" color="#AFAFAF"></uni-icons>
    <button type="primary" class="btn-login" @click="getUserProfile">一键登录</button>
    <text class="tips-text">登录后尽享更多权益</text>
  </view>
</template>

<script>
  import { mapState, mapMutations } from 'vuex'
import myLoginVue from './my-login.vue';
  export default {
    name:"my-login",
    data() {
      return {
        
      };
    },
    computed: {
      ...mapState('m_user', ['redirectInfo'])
    },
    methods: {
      ...mapMutations('m_user', ['updateUserInfo', 'updateToken', 'updateRedirectInfo']),
      // 用户授权后，获取用户的基本信息
      async getUserProfile() {
        const res = await uni.getUserProfile({
          desc: '登录授权',
          success: (res) => {
            this.updateUserInfo(res.userInfo)
            this.getToken(res)
            // console.log(res);
          },
          fail(res) {
             return uni.$showMsg('请重新进行授权！')
            // console.log(res);
          }
        })
        // 判断是否成功 res.errMsg.search(/fail/g) !== -1
        
         
        
      },
      async getToken(info) {
        // 获取 code 对应的值
        const res = await uni.login().catch(err => err)
        // console.log(res)
        if (res[1].errMsg !== 'login:ok') return uni.$showMsg('登录失败！')
        // 准备参数
        const query = {
          code: res.code,
          encryptedData: info.encryptedData,
          iv: info.iv,
          rawData: info.rawData,
          signature: info.signature
        }
        const {data: loginResult} = await uni.$http.post('/api/public/v1/users/wxlogin', query)
        console.log(loginResult)
        if(loginResult.meta.status !== 200 && loginResult.meta.status !== 400) return uni.$showMsg('登录失败！')
        
        // 400 意味着请求有效
        const msg = loginResult.message || {}
        if(loginResult.meta.status === 400) {
        // 写死的 token
          msg.token = 'Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1aWQiOjIzLCJpYXQiOjE1NjQ3MzAwNzksImV4cCI6MTAwMTU2NDczMDA3OH0.YPt-XeLnjV-_1ITaXGY2FhxmCe4NvXuRnRB8OMCfnPo'
          // 模拟 token
          // for (let i = 1; i <= 32; i++) {
            // const n = Math.floor(Math.random() * 16.0).toString(16)
            // msg.token += n
          // }
        }
        // console.log(msg.token)
        // 直接把 token 保存到 vuex 中
        // this.updateToken(loginResult.message.token)
        this.updateToken(msg.token)
        this.navigateBack()
      },
      navigateBack() {
        if(this.redirectInfo && this.redirectInfo.openType === 'switchTab') {
          uni.switchTab({
            url: this.redirectInfo.from,
            complete: () => {
              this.updateRedirectInfo(null)
            }
          })
        }
      }
    }
  }
</script>

<style lang="scss">
  view{background-color: white;}
  
.login-container {
  height: 750rpx;
  background-color: #F8F8F8;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
  &::after{
    content: ' ';
    display: block;
    width: 100%;
    height: 40px;
    background-color: white;
    position: absolute;
    bottom: 0;
    left: 0;
    border-radius: 100%;
    transform: translateY(50%);
  }
  .btn-login {
    width: 90%;
    border-radius: 100px;
    margin: 15px 0;
    background-color: #C00000;
  }
  .tips-text {
    font-size: 12px;
    color: gray;
  }
}
</style>